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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Abs With EBD & BA & TRAC & VSC System - Diagnostics >> TC And Cg Terminal Circuit >> Inspection Procedure

Inspection Procedure

  1. INSPECT DLC3 TERMINAL VOLTAGE (DLC3 TERMINAL VOLTAGE) 
    1. Turn the ignition switch to the ON position.
    2. Measure the voltage according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester Connection Specified Condition
      D3-13 (TC) - D3-4 (CG) 10 to 14 V
      Fig 1: Inspecting DLC3 Terminal Voltage (DLC3 Terminal Voltage)
      G02908715Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: Go to step   4 . 
    2. OK: GO TO NEXT STEP. 
  2. CHECK HARNESS AND CONNECTOR (ECM - DLC3) 
    1. Disconnect the ECM connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester Connection Specified Condition
      E5-20 (TC) - D3-13 (TC) Below 1 Ω
    3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester Connection Specified Condition
      D3-13 (TC) - Body ground 10 kΩ or higher
      Fig 2: Checking Harness And Connector (ECM - DLC3)
      G02908716Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP. 
  3. CHECK HARNESS AND CONNECTOR (ECM - SKID CONTROL ECU) 
    1. Disconnect the skid control ECU connector and the ECM connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester Connection Specified Condition
      E5-24 (ENG+) - S27-9 (ENG+) Below 1 Ω
      E5-30 (ENG-) - S27-23 (ENG-) Below 1 Ω
    3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester Connection Specified Condition
      S27-9 (ENG+) - Body ground 10 kΩ or higher
      S27-23 (ENG-) - Body ground 10 kΩ or higher
      Fig 3: Checking Harness And Connector (ECM - Skid Control ECU)
      G02908717Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: REPLACE ABS & TRACTION ACTUATOR ASSY (See  REPLACEMENT  ) 
  4. CHECK HARNESS AND CONNECTOR (DLC 3 - BODY GROUND) 
    1. Disconnect the skid control ECU connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester Connection Specified Condition
      D3-4 (CG) - Body ground Below 1 Ω
      Fig 4: Checking Harness And Connector (DLC 3 - Body Ground)
      G02908718Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP. 
  5. CHECK HARNESS AND CONNECTOR (ECM - DLC3) 
    1. Disconnect the ECM connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester Connection Specified Condition
      E5-20 (TC) - D3-13 (TC) Below 1 Ω
    3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester Connection Specified Condition
      D3-13 (TC) - Body ground 10 kΩ or higher
      Fig 5: Checking Harness And Connector (ECM - DLC3)
      G02908719Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP. 
  6. CHECK HARNESS AND CONNECTOR (ECM - SKID CONTROL ECU) 
    1. Disconnect the skid control ECU connector and the ECM connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester Connection Specified Condition
      E5-24 (ENG+) - S27-9 (ENG+) Below 1 Ω
      E5-30 (ENG-) - S27-23 (ENG-) Below 1 Ω
    3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      SPECIFICATION TESTER CONNECTION

      Tester Connection Specified Condition
      S27-9 (ENG+) - Body ground 10 kΩ or higher
      S27-23 (ENG-) - Body ground 10 kΩ or higher
      Fig 6: Checking Harness And Connector (ECM - Skid Control ECU)
      G02908720Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: REPLACE ABS & TRACTION ACTUATOR ASSY (See  REPLACEMENT  ) 
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